Eel only when he's out and about roaming or giving the feed me response (opens mouth a few times wider than normal), mine was eating twice a day and has cut back 2 3 maybe 4 times a week (gradual decline as he has grown). Your fish 1/8-1/4 of a cube morning and night, wrasses are active.Thank you. Everyone is pretty much saying the same thing. It looks like I started to early. I have a wrase, a tomato clown and eel left. All appears okay. How often do you feed your fish. I've heard every other day, once every three days.